package com.guoqiang.struct;

import java.util.Scanner;

public class IfDemo03 {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入成绩: ");

        double score = scanner.nextDouble();
        if (score == 100.0) {
            System.out.println("满分～");
        } else if (score < 100 && score >= 90) {
            System.out.println("A级别");
        } else if (score < 90 && score >= 80) {
            System.out.println("B级别");
        } else if (score < 80 && score >= 70) {
            System.out.println("C级别");
        } else if (score < 70 && score >= 60) {
            System.out.println("D级别");
        }
        scanner.close();
    }
}
